Superconducting properties of high-Tc Bi-Sr-Ca-Cu-O thin films
Yo Ichikawa, Hideaki Adachi, Kumiko Hirochi, Kentaro Setsune, Shin-ichiro Hatta, Kiyotaka Wasa
DOI 10.1103/PhysRevB.38.765 · Physical Review B
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Abstract
Polycrystalline thin films of the high-Tc Bi-Sr-Ca-Cu-O system have been grown on MgO substrates using an rf magnetron sputtering technique. The Bi-Sr-Ca-Cu-O thin films with a sharp superconducting transition were obtained after the post-annealing. The best sample exhibits the transition temperature of around 110 K with zero-resistance temperature of about 100 K. The critical current density of the Bi-Sr-Ca-Cu-O system is estimated to be 105 to 2×105 A/cm2 at 77 K.
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